Door construction and the like



C. D. ALIO noon CONSTRUCTION AND THE LIKE Jan. 18, 1944.

Filed June, 28, 1941 647051724 26224 d Z155 Q am um lwrw t 0 g 7 g Patented Jan. 18, 1944 OFFICE DOOR CONSTRUCTION AND THE LIKE Carolina Delia Alio, Buenos Aires, Argentina Application June 28 1941, Serial No. 400,264

In Argentina December 19', 1940 a 1 Claim. ('01. 20-19) The present invention relates to a new type of construction for doors, windows and like closures, and more particularly to closures which are moved by gliding.

The object of the invention is to provide automatic closure of door or window openings by means of gravitation.

The construction consists essentially of a wall with a suitable opening therein, having parallel vertical members and a lintel membermounted on the parallel vertical members in oblique relation thereto and a base or threshold member suitably formed in oblique relation to the parallel vertical members and in parallel relationship to the oblique lintel member. Bearing surfaces and grooved guide rails in the threshold and lintel members provide convenient means for facilitating movement of the door or window.

Adjacent the lower part of the opening is a blocking device which is mounted in such a manner that when the door is in its open position the oblique portion of the threshold is covered and the blocking device lies in a true horizontal position, flush with the floor surface, and at a ninety degree angle in relation to the two vertical side members, thus avoiding the possible danger of one stumbling over the uneven floor surface between the rooms.

Reference is had to the accompanying drawing in which:

Figure 1 is a front elevation view of the door opening construction of my invention;

Figure 2 is a horizontal sectional view taken on the line AA of Figure 1;

Figure 3 is a vertical sectional View taken on the line B-B of Figure 1;

Figure 4 is a sectional View taken on the line CC of Figure 1 and showing particularly the oblique threshold member and the blocking device; and

Figure 5 is a detailed view of the blocking device.

Referring now in detail to the drawing, a door or window I is shown with suitableupper frame member 3 and lower frame member 2 in fixed relation to vertical frame members I7. The two parallel members 9 and H) of the side wall are spaced apart by means of vertical frame members B, l and 8. A grooved lintel member 5 and a grooved threshold member 4 are suitably mounted on and in fixed relation to vertical frame members 6 and 1. The grooved lintel member 5 and the grooved threshold member 4 being in parallel relation to each other and in oblique relation to 6, 1 and 8. Vertical frame members 1 and 8 abut the opening ll, while vertical frame member 6 is contained within the space formed between side walls 9 and I0 and spaced in such relationship that it limits the movement of the door I when it is moved to its maximum open position. When the door member is moved to its maximum open position, it is wholly contained within the open portion between the side walls 9 and I0 and is hidden from View as is indicated by Figure 2. The door member I is slidably mounted within the grooved members 4 and 5, which act as guide members when the door is moved to its closed position.

Roller bearing members l2, mounted in openings l3 of the frame member 2, facilitate the sliding movement of the door member I within the channel provided by the oblique member 4. Roller bearing members I2 are shown mounted on the vertical frame member 8 and they also provide for a more easily movable positioning of the door member I as it is placed in either its opened or closed position.

The floor 29, shown in Figur 4, is provided with a suitable opening 30. When the door I is in its maximum open position, this opening 30 is of suflicient width to be of danger to a person walking from one room to another. Therefore, I provide a Plate member I6, as best shown in Figure 5, to close the opening 30, the upper surface of the plate member I6 being flush with the surface of the floor 29. This plate member is mounted at one end to vertical frame member I! of the door I, by means of a bearing 7 and guide member I8. An expansion spring 20 is fixably secured at its lower end to an L-shaped member 2|, which in turn is secured to the member I1. Spring member 20 acts as an adjusting means to correct the position of the bearing and guide member [8. At the opposite end of plate member I6 is a roller 23 mounted on support 22 and fixed to the under surfac of plate member I6. Roller 23 is guided in its movement by the vertical frame members channel member 24, which channel member is in parallel relationship to the floor 29, and is contained in the space 25 which has been provided beneath the surface of the floor. The length of channel member 24 is approximately equivalent to that of plate member 16.

The door I is provided with suitable handles 26 placed on both sides of vertical frame member I! as indicated. When the door I is pushed back within the space formed between side Walls 7 9 and I [I to its maximum open position, as shown in Figure 1, it is held in place securely by any well known lockine means, not here indicated in the drawing.

When the locking device is released, the door will slide along grooved guide members 4 and 5 until it abuts vertical frame member 8, thus closing the opening ll. Suitable rubber plugs 28 secured to frame member -'I of the door member I act as buffers against the vertical frame member 8 when the locking device is released and door member I slides to its maximum closed position. Also, during the sliding of door memher I to its maximum closed position, plate member 16 is carried along on its roller 23, down oblique grooved member which has been provided for it. At the same time, the movement is not hindered, due tothe oscillatory connection of the support l8, the height of when the door reaches its maximum closed position, the upper surface of plate member 16 remains in contact with the upper end of the support and guide member 18, thus compensating for the difference in level between the two vertical-frame members I and 8 during the maxiand guide I which is predetermined and 4, and into spac '25 lower portion of one edge of said door and above said lower guide rail, a roller mounted adjacent i the other end of said plate member, and a channel 7 member extending longitudinally of said lower guide rail for guiding the roller on said other end of said plate, said plate member covering said lower guide rail upon movement of said door upwardly of said lower guide rail.

' CAROLINA 'DELIA ALIC'). 

